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Finding the Fourth Proportional to 349,520.40, 524,280.60 and 112,870.80

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Solution

The fourth proportional to 349,520.40, 524,280.60 and 112,870.80 is: 169,306.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,520.40 : 524,280.60 = 112,870.80 : x
  2. Step 2: Convert to fraction form
    349,520.40/524,280.60 = 112,870.80/x
  3. Step 3: Cross multiply
    349,520.40x = 524,280.60 × 112,870.80
  4. Step 4: Simplify right side
    349,520.40x = 59,175,970,746.48
  5. Step 5: Solve for x
    x = 59,175,970,746.48/349,520.40
  6. Step 6: Final answer
    x = 169,306.20

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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.