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Finding the Fourth Proportional to 291,272.60, 436,908.90 and 249,282.20

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Solution

The fourth proportional to 291,272.60, 436,908.90 and 249,282.20 is: 373,923.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,272.60 : 436,908.90 = 249,282.20 : x
  2. Step 2: Convert to fraction form
    291,272.60/436,908.90 = 249,282.20/x
  3. Step 3: Cross multiply
    291,272.60x = 436,908.90 × 249,282.20
  4. Step 4: Simplify right side
    291,272.60x = 108,913,611,791.58
  5. Step 5: Solve for x
    x = 108,913,611,791.58/291,272.60
  6. Step 6: Final answer
    x = 373,923.30

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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.