Home / 208,728.28-288,045.06-118,082.32

Finding the Fourth Proportional to 208,728.28, 288,045.06 and 118,082.32

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Solution

The fourth proportional to 208,728.28, 288,045.06 and 118,082.32 is: 162,953.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,728.28 : 288,045.06 = 118,082.32 : x
  2. Step 2: Convert to fraction form
    208,728.28/288,045.06 = 118,082.32/x
  3. Step 3: Cross multiply
    208,728.28x = 288,045.06 × 118,082.32
  4. Step 4: Simplify right side
    208,728.28x = 34,013,028,949.34
  5. Step 5: Solve for x
    x = 34,013,028,949.34/208,728.28
  6. Step 6: Final answer
    x = 162,953.62

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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.