Home / 539,121.20-808,681.80-165,095.60

Finding the Fourth Proportional to 539,121.20, 808,681.80 and 165,095.60

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Solution

The fourth proportional to 539,121.20, 808,681.80 and 165,095.60 is: 247,643.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,121.20 : 808,681.80 = 165,095.60 : x
  2. Step 2: Convert to fraction form
    539,121.20/808,681.80 = 165,095.60/x
  3. Step 3: Cross multiply
    539,121.20x = 808,681.80 × 165,095.60
  4. Step 4: Simplify right side
    539,121.20x = 133,509,806,980.08
  5. Step 5: Solve for x
    x = 133,509,806,980.08/539,121.20
  6. Step 6: Final answer
    x = 247,643.40

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.