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Finding the Fourth Proportional to 402,637.01, 555,578.87 and 230,527.80

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Solution

The fourth proportional to 402,637.01, 555,578.87 and 230,527.80 is: 318,093.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,637.01 : 555,578.87 = 230,527.80 : x
  2. Step 2: Convert to fraction form
    402,637.01/555,578.87 = 230,527.80/x
  3. Step 3: Cross multiply
    402,637.01x = 555,578.87 × 230,527.80
  4. Step 4: Simplify right side
    402,637.01x = 128,076,373,474.95
  5. Step 5: Solve for x
    x = 128,076,373,474.95/402,637.01
  6. Step 6: Final answer
    x = 318,093.90

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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.