Home / 210,376.90-290,345.04-118,499.21

Finding the Fourth Proportional to 210,376.90, 290,345.04 and 118,499.21

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Solution

The fourth proportional to 210,376.90, 290,345.04 and 118,499.21 is: 163,542.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,376.90 : 290,345.04 = 118,499.21 : x
  2. Step 2: Convert to fraction form
    210,376.90/290,345.04 = 118,499.21/x
  3. Step 3: Cross multiply
    210,376.90x = 290,345.04 × 118,499.21
  4. Step 4: Simplify right side
    210,376.90x = 34,405,655,823.20
  5. Step 5: Solve for x
    x = 34,405,655,823.20/210,376.90
  6. Step 6: Final answer
    x = 163,542.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.