Home / 288,876.31-433,417.02-128,937.69

Finding the Fourth Proportional to 288,876.31, 433,417.02 and 128,937.69

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Solution

The fourth proportional to 288,876.31, 433,417.02 and 128,937.69 is: 193,452.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,876.31 : 433,417.02 = 128,937.69 : x
  2. Step 2: Convert to fraction form
    288,876.31/433,417.02 = 128,937.69/x
  3. Step 3: Cross multiply
    288,876.31x = 433,417.02 × 128,937.69
  4. Step 4: Simplify right side
    288,876.31x = 55,883,789,365.48
  5. Step 5: Solve for x
    x = 55,883,789,365.48/288,876.31
  6. Step 6: Final answer
    x = 193,452.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.