Home / 291,433.32-437,150.76-81,071.28

Finding the Fourth Proportional to 291,433.32, 437,150.76 and 81,071.28

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Solution

The fourth proportional to 291,433.32, 437,150.76 and 81,071.28 is: 121,607.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,433.32 : 437,150.76 = 81,071.28 : x
  2. Step 2: Convert to fraction form
    291,433.32/437,150.76 = 81,071.28/x
  3. Step 3: Cross multiply
    291,433.32x = 437,150.76 × 81,071.28
  4. Step 4: Simplify right side
    291,433.32x = 35,440,371,666.17
  5. Step 5: Solve for x
    x = 35,440,371,666.17/291,433.32
  6. Step 6: Final answer
    x = 121,607.14

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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.