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Finding the Fourth Proportional to 249,520.40, 374,280.60 and 83,308.40

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Solution

The fourth proportional to 249,520.40, 374,280.60 and 83,308.40 is: 124,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,520.40 : 374,280.60 = 83,308.40 : x
  2. Step 2: Convert to fraction form
    249,520.40/374,280.60 = 83,308.40/x
  3. Step 3: Cross multiply
    249,520.40x = 374,280.60 × 83,308.40
  4. Step 4: Simplify right side
    249,520.40x = 31,180,717,937.04
  5. Step 5: Solve for x
    x = 31,180,717,937.04/249,520.40
  6. Step 6: Final answer
    x = 124,962.60

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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.