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Finding the Fourth Proportional to 334,140.80, 501,211.20 and 310,521.20

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Solution

The fourth proportional to 334,140.80, 501,211.20 and 310,521.20 is: 465,781.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    334,140.80 : 501,211.20 = 310,521.20 : x
  2. Step 2: Convert to fraction form
    334,140.80/501,211.20 = 310,521.20/x
  3. Step 3: Cross multiply
    334,140.80x = 501,211.20 × 310,521.20
  4. Step 4: Simplify right side
    334,140.80x = 155,636,703,277.44
  5. Step 5: Solve for x
    x = 155,636,703,277.44/334,140.80
  6. Step 6: Final answer
    x = 465,781.80

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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.