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Finding the Fourth Proportional to 292,282.40, 438,423.60 and 266,477.60

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Solution

The fourth proportional to 292,282.40, 438,423.60 and 266,477.60 is: 399,716.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,282.40 : 438,423.60 = 266,477.60 : x
  2. Step 2: Convert to fraction form
    292,282.40/438,423.60 = 266,477.60/x
  3. Step 3: Cross multiply
    292,282.40x = 438,423.60 × 266,477.60
  4. Step 4: Simplify right side
    292,282.40x = 116,830,068,711.36
  5. Step 5: Solve for x
    x = 116,830,068,711.36/292,282.40
  6. Step 6: Final answer
    x = 399,716.40

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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.