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Finding the Fourth Proportional to 508,697.64, 763,179.83 and 153,721.08

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Solution

The fourth proportional to 508,697.64, 763,179.83 and 153,721.08 is: 230,621.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,697.64 : 763,179.83 = 153,721.08 : x
  2. Step 2: Convert to fraction form
    508,697.64/763,179.83 = 153,721.08/x
  3. Step 3: Cross multiply
    508,697.64x = 763,179.83 × 153,721.08
  4. Step 4: Simplify right side
    508,697.64x = 117,316,824,270.22
  5. Step 5: Solve for x
    x = 117,316,824,270.22/508,697.64
  6. Step 6: Final answer
    x = 230,621.92

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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.