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Finding the Fourth Proportional to 302,023.72, 452,975.10 and 287,036.20

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Solution

The fourth proportional to 302,023.72, 452,975.10 and 287,036.20 is: 430,496.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,023.72 : 452,975.10 = 287,036.20 : x
  2. Step 2: Convert to fraction form
    302,023.72/452,975.10 = 287,036.20/x
  3. Step 3: Cross multiply
    302,023.72x = 452,975.10 × 287,036.20
  4. Step 4: Simplify right side
    302,023.72x = 130,020,251,398.62
  5. Step 5: Solve for x
    x = 130,020,251,398.62/302,023.72
  6. Step 6: Final answer
    x = 430,496.82

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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.