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Finding the Fourth Proportional to 280,543.46, 420,818.55 and 93,554.90

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Solution

The fourth proportional to 280,543.46, 420,818.55 and 93,554.90 is: 140,333.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,543.46 : 420,818.55 = 93,554.90 : x
  2. Step 2: Convert to fraction form
    280,543.46/420,818.55 = 93,554.90/x
  3. Step 3: Cross multiply
    280,543.46x = 420,818.55 × 93,554.90
  4. Step 4: Simplify right side
    280,543.46x = 39,369,637,363.40
  5. Step 5: Solve for x
    x = 39,369,637,363.40/280,543.46
  6. Step 6: Final answer
    x = 140,333.47

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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.