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Finding the Fourth Proportional to 388,655.20, 536,331.54 and 237,752.20

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Solution

The fourth proportional to 388,655.20, 536,331.54 and 237,752.20 is: 328,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,655.20 : 536,331.54 = 237,752.20 : x
  2. Step 2: Convert to fraction form
    388,655.20/536,331.54 = 237,752.20/x
  3. Step 3: Cross multiply
    388,655.20x = 536,331.54 × 237,752.20
  4. Step 4: Simplify right side
    388,655.20x = 127,514,003,564.39
  5. Step 5: Solve for x
    x = 127,514,003,564.39/388,655.20
  6. Step 6: Final answer
    x = 328,090.31

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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.