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Finding the Fourth Proportional to 291,249.60, 436,874.40 and 249,259.20

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Solution

The fourth proportional to 291,249.60, 436,874.40 and 249,259.20 is: 373,888.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,249.60 : 436,874.40 = 249,259.20 : x
  2. Step 2: Convert to fraction form
    291,249.60/436,874.40 = 249,259.20/x
  3. Step 3: Cross multiply
    291,249.60x = 436,874.40 × 249,259.20
  4. Step 4: Simplify right side
    291,249.60x = 108,894,963,444.48
  5. Step 5: Solve for x
    x = 108,894,963,444.48/291,249.60
  6. Step 6: Final answer
    x = 373,888.80

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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.