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Finding the Fourth Proportional to 291,269.60, 436,904.40 and 249,279.20

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Solution

The fourth proportional to 291,269.60, 436,904.40 and 249,279.20 is: 373,918.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,269.60 : 436,904.40 = 249,279.20 : x
  2. Step 2: Convert to fraction form
    291,269.60/436,904.40 = 249,279.20/x
  3. Step 3: Cross multiply
    291,269.60x = 436,904.40 × 249,279.20
  4. Step 4: Simplify right side
    291,269.60x = 108,911,179,308.48
  5. Step 5: Solve for x
    x = 108,911,179,308.48/291,269.60
  6. Step 6: Final answer
    x = 373,918.80

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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.