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Finding the Fourth Proportional to 477,254.40, 715,881.60 and 210,877.80

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Solution

The fourth proportional to 477,254.40, 715,881.60 and 210,877.80 is: 316,316.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,254.40 : 715,881.60 = 210,877.80 : x
  2. Step 2: Convert to fraction form
    477,254.40/715,881.60 = 210,877.80/x
  3. Step 3: Cross multiply
    477,254.40x = 715,881.60 × 210,877.80
  4. Step 4: Simplify right side
    477,254.40x = 150,963,536,868.48
  5. Step 5: Solve for x
    x = 150,963,536,868.48/477,254.40
  6. Step 6: Final answer
    x = 316,316.70

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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.