Home / 415,529.60-623,294.40-135,075.20

Finding the Fourth Proportional to 415,529.60, 623,294.40 and 135,075.20

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Solution

The fourth proportional to 415,529.60, 623,294.40 and 135,075.20 is: 202,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,529.60 : 623,294.40 = 135,075.20 : x
  2. Step 2: Convert to fraction form
    415,529.60/623,294.40 = 135,075.20/x
  3. Step 3: Cross multiply
    415,529.60x = 623,294.40 × 135,075.20
  4. Step 4: Simplify right side
    415,529.60x = 84,191,615,738.88
  5. Step 5: Solve for x
    x = 84,191,615,738.88/415,529.60
  6. Step 6: Final answer
    x = 202,612.80

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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.