Home / 437,501.20-656,397.60-213,001.60

Finding the Fourth Proportional to 437,501.20, 656,397.60 and 213,001.60

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Solution

The fourth proportional to 437,501.20, 656,397.60 and 213,001.60 is: 319,573.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,501.20 : 656,397.60 = 213,001.60 : x
  2. Step 2: Convert to fraction form
    437,501.20/656,397.60 = 213,001.60/x
  3. Step 3: Cross multiply
    437,501.20x = 656,397.60 × 213,001.60
  4. Step 4: Simplify right side
    437,501.20x = 139,813,739,036.16
  5. Step 5: Solve for x
    x = 139,813,739,036.16/437,501.20
  6. Step 6: Final answer
    x = 319,573.38

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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.