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Finding the Fourth Proportional to 292,853.80, 439,280.70 and 264,860.20

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Solution

The fourth proportional to 292,853.80, 439,280.70 and 264,860.20 is: 397,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,853.80 : 439,280.70 = 264,860.20 : x
  2. Step 2: Convert to fraction form
    292,853.80/439,280.70 = 264,860.20/x
  3. Step 3: Cross multiply
    292,853.80x = 439,280.70 × 264,860.20
  4. Step 4: Simplify right side
    292,853.80x = 116,347,974,058.14
  5. Step 5: Solve for x
    x = 116,347,974,058.14/292,853.80
  6. Step 6: Final answer
    x = 397,290.30

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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.