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Finding the Fourth Proportional to 292,993.80, 439,490.70 and 258,001.80

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Solution

The fourth proportional to 292,993.80, 439,490.70 and 258,001.80 is: 387,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,993.80 : 439,490.70 = 258,001.80 : x
  2. Step 2: Convert to fraction form
    292,993.80/439,490.70 = 258,001.80/x
  3. Step 3: Cross multiply
    292,993.80x = 439,490.70 × 258,001.80
  4. Step 4: Simplify right side
    292,993.80x = 113,389,391,683.26
  5. Step 5: Solve for x
    x = 113,389,391,683.26/292,993.80
  6. Step 6: Final answer
    x = 387,002.70

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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.