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Finding the Fourth Proportional to 347,779.80, 521,378.10 and 181,567.80

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Solution

The fourth proportional to 347,779.80, 521,378.10 and 181,567.80 is: 272,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,779.80 : 521,378.10 = 181,567.80 : x
  2. Step 2: Convert to fraction form
    347,779.80/521,378.10 = 181,567.80/x
  3. Step 3: Cross multiply
    347,779.80x = 521,378.10 × 181,567.80
  4. Step 4: Simplify right side
    347,779.80x = 94,665,474,585.18
  5. Step 5: Solve for x
    x = 94,665,474,585.18/347,779.80
  6. Step 6: Final answer
    x = 272,199.46

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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.