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Finding the Fourth Proportional to 238,221.38, 328,746.16 and 130,798.37

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Solution

The fourth proportional to 238,221.38, 328,746.16 and 130,798.37 is: 180,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,221.38 : 328,746.16 = 130,798.37 : x
  2. Step 2: Convert to fraction form
    238,221.38/328,746.16 = 130,798.37/x
  3. Step 3: Cross multiply
    238,221.38x = 328,746.16 × 130,798.37
  4. Step 4: Simplify right side
    238,221.38x = 42,999,461,217.77
  5. Step 5: Solve for x
    x = 42,999,461,217.77/238,221.38
  6. Step 6: Final answer
    x = 180,502.11

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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.