Home / 209,012.90-288,428.16-118,369.52

Finding the Fourth Proportional to 209,012.90, 288,428.16 and 118,369.52

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Solution

The fourth proportional to 209,012.90, 288,428.16 and 118,369.52 is: 163,344.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,012.90 : 288,428.16 = 118,369.52 : x
  2. Step 2: Convert to fraction form
    209,012.90/288,428.16 = 118,369.52/x
  3. Step 3: Cross multiply
    209,012.90x = 288,428.16 × 118,369.52
  4. Step 4: Simplify right side
    209,012.90x = 34,141,103,574.75
  5. Step 5: Solve for x
    x = 34,141,103,574.75/209,012.90
  6. Step 6: Final answer
    x = 163,344.48

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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.