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Finding the Fourth Proportional to 495,034.40, 742,405.80 and 195,415.40

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Solution

The fourth proportional to 495,034.40, 742,405.80 and 195,415.40 is: 293,065.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,034.40 : 742,405.80 = 195,415.40 : x
  2. Step 2: Convert to fraction form
    495,034.40/742,405.80 = 195,415.40/x
  3. Step 3: Cross multiply
    495,034.40x = 742,405.80 × 195,415.40
  4. Step 4: Simplify right side
    495,034.40x = 145,077,526,369.32
  5. Step 5: Solve for x
    x = 145,077,526,369.32/495,034.40
  6. Step 6: Final answer
    x = 293,065.55

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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.