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Finding the Fourth Proportional to 307,555.52, 424,437.09 and 178,484.06

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Solution

The fourth proportional to 307,555.52, 424,437.09 and 178,484.06 is: 246,314.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,555.52 : 424,437.09 = 178,484.06 : x
  2. Step 2: Convert to fraction form
    307,555.52/424,437.09 = 178,484.06/x
  3. Step 3: Cross multiply
    307,555.52x = 424,437.09 × 178,484.06
  4. Step 4: Simplify right side
    307,555.52x = 75,755,255,037.79
  5. Step 5: Solve for x
    x = 75,755,255,037.79/307,555.52
  6. Step 6: Final answer
    x = 246,314.08

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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.