Home / 390,337.11-538,457.43-237,422.07

Finding the Fourth Proportional to 390,337.11, 538,457.43 and 237,422.07

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Solution

The fourth proportional to 390,337.11, 538,457.43 and 237,422.07 is: 327,516.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,337.11 : 538,457.43 = 237,422.07 : x
  2. Step 2: Convert to fraction form
    390,337.11/538,457.43 = 237,422.07/x
  3. Step 3: Cross multiply
    390,337.11x = 538,457.43 × 237,422.07
  4. Step 4: Simplify right side
    390,337.11x = 127,841,677,637.48
  5. Step 5: Solve for x
    x = 127,841,677,637.48/390,337.11
  6. Step 6: Final answer
    x = 327,516.07

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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.