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Finding the Fourth Proportional to 542,931.80, 749,250.40 and 301,230.22

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Solution

The fourth proportional to 542,931.80, 749,250.40 and 301,230.22 is: 415,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,931.80 : 749,250.40 = 301,230.22 : x
  2. Step 2: Convert to fraction form
    542,931.80/749,250.40 = 301,230.22/x
  3. Step 3: Cross multiply
    542,931.80x = 749,250.40 × 301,230.22
  4. Step 4: Simplify right side
    542,931.80x = 225,696,862,827.09
  5. Step 5: Solve for x
    x = 225,696,862,827.09/542,931.80
  6. Step 6: Final answer
    x = 415,700.21

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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.