Home / 328,210.25-492,271.61-91,533.11

Finding the Fourth Proportional to 328,210.25, 492,271.61 and 91,533.11

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Solution

The fourth proportional to 328,210.25, 492,271.61 and 91,533.11 is: 137,287.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,210.25 : 492,271.61 = 91,533.11 : x
  2. Step 2: Convert to fraction form
    328,210.25/492,271.61 = 91,533.11/x
  3. Step 3: Cross multiply
    328,210.25x = 492,271.61 × 91,533.11
  4. Step 4: Simplify right side
    328,210.25x = 45,059,148,508.98
  5. Step 5: Solve for x
    x = 45,059,148,508.98/328,210.25
  6. Step 6: Final answer
    x = 137,287.45

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1.5x scale

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.