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Finding the Fourth Proportional to 250,035.98, 345,046.95 and 135,312.08

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Solution

The fourth proportional to 250,035.98, 345,046.95 and 135,312.08 is: 186,729.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,035.98 : 345,046.95 = 135,312.08 : x
  2. Step 2: Convert to fraction form
    250,035.98/345,046.95 = 135,312.08/x
  3. Step 3: Cross multiply
    250,035.98x = 345,046.95 × 135,312.08
  4. Step 4: Simplify right side
    250,035.98x = 46,689,020,502.16
  5. Step 5: Solve for x
    x = 46,689,020,502.16/250,035.98
  6. Step 6: Final answer
    x = 186,729.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.