Home / 209,027.90-288,462.31-118,402.68

Finding the Fourth Proportional to 209,027.90, 288,462.31 and 118,402.68

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Solution

The fourth proportional to 209,027.90, 288,462.31 and 118,402.68 is: 163,397.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,027.90 : 288,462.31 = 118,402.68 : x
  2. Step 2: Convert to fraction form
    209,027.90/288,462.31 = 118,402.68/x
  3. Step 3: Cross multiply
    209,027.90x = 288,462.31 × 118,402.68
  4. Step 4: Simplify right side
    209,027.90x = 34,154,711,368.72
  5. Step 5: Solve for x
    x = 34,154,711,368.72/209,027.90
  6. Step 6: Final answer
    x = 163,397.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.