Home / 487,442.94-731,088.81-188,063.70

Finding the Fourth Proportional to 487,442.94, 731,088.81 and 188,063.70

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Solution

The fourth proportional to 487,442.94, 731,088.81 and 188,063.70 is: 282,066.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,442.94 : 731,088.81 = 188,063.70 : x
  2. Step 2: Convert to fraction form
    487,442.94/731,088.81 = 188,063.70/x
  3. Step 3: Cross multiply
    487,442.94x = 731,088.81 × 188,063.70
  4. Step 4: Simplify right side
    487,442.94x = 137,491,266,637.20
  5. Step 5: Solve for x
    x = 137,491,266,637.20/487,442.94
  6. Step 6: Final answer
    x = 282,066.38

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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.