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Finding the Fourth Proportional to 249,307.20, 373,960.80 and 80,827.20

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Solution

The fourth proportional to 249,307.20, 373,960.80 and 80,827.20 is: 121,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,307.20 : 373,960.80 = 80,827.20 : x
  2. Step 2: Convert to fraction form
    249,307.20/373,960.80 = 80,827.20/x
  3. Step 3: Cross multiply
    249,307.20x = 373,960.80 × 80,827.20
  4. Step 4: Simplify right side
    249,307.20x = 30,226,204,373.76
  5. Step 5: Solve for x
    x = 30,226,204,373.76/249,307.20
  6. Step 6: Final answer
    x = 121,240.80

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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.