Home / 209,001.81-288,440.28-118,373.90

Finding the Fourth Proportional to 209,001.81, 288,440.28 and 118,373.90

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Solution

The fourth proportional to 209,001.81, 288,440.28 and 118,373.90 is: 163,366.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,001.81 : 288,440.28 = 118,373.90 : x
  2. Step 2: Convert to fraction form
    209,001.81/288,440.28 = 118,373.90/x
  3. Step 3: Cross multiply
    209,001.81x = 288,440.28 × 118,373.90
  4. Step 4: Simplify right side
    209,001.81x = 34,143,799,418.49
  5. Step 5: Solve for x
    x = 34,143,799,418.49/209,001.81
  6. Step 6: Final answer
    x = 163,366.05

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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.