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Finding the Fourth Proportional to 390,048.57, 538,106.73 and 237,062.12

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Solution

The fourth proportional to 390,048.57, 538,106.73 and 237,062.12 is: 327,048.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,048.57 : 538,106.73 = 237,062.12 : x
  2. Step 2: Convert to fraction form
    390,048.57/538,106.73 = 237,062.12/x
  3. Step 3: Cross multiply
    390,048.57x = 538,106.73 × 237,062.12
  4. Step 4: Simplify right side
    390,048.57x = 127,564,720,854.80
  5. Step 5: Solve for x
    x = 127,564,720,854.80/390,048.57
  6. Step 6: Final answer
    x = 327,048.30

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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.