Home / 345,737.90-518,601.68-210,841.60

Finding the Fourth Proportional to 345,737.90, 518,601.68 and 210,841.60

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Solution

The fourth proportional to 345,737.90, 518,601.68 and 210,841.60 is: 316,259.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,737.90 : 518,601.68 = 210,841.60 : x
  2. Step 2: Convert to fraction form
    345,737.90/518,601.68 = 210,841.60/x
  3. Step 3: Cross multiply
    345,737.90x = 518,601.68 × 210,841.60
  4. Step 4: Simplify right side
    345,737.90x = 109,342,807,973.89
  5. Step 5: Solve for x
    x = 109,342,807,973.89/345,737.90
  6. Step 6: Final answer
    x = 316,259.25

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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.