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Finding the Fourth Proportional to 286,361.80, 429,542.70 and 240,051.40

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Solution

The fourth proportional to 286,361.80, 429,542.70 and 240,051.40 is: 360,077.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,361.80 : 429,542.70 = 240,051.40 : x
  2. Step 2: Convert to fraction form
    286,361.80/429,542.70 = 240,051.40/x
  3. Step 3: Cross multiply
    286,361.80x = 429,542.70 × 240,051.40
  4. Step 4: Simplify right side
    286,361.80x = 103,112,326,494.78
  5. Step 5: Solve for x
    x = 103,112,326,494.78/286,361.80
  6. Step 6: Final answer
    x = 360,077.10

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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.