Home / 209,030.48-288,462.54-113,535.16

Finding the Fourth Proportional to 209,030.48, 288,462.54 and 113,535.16

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Solution

The fourth proportional to 209,030.48, 288,462.54 and 113,535.16 is: 156,678.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,030.48 : 288,462.54 = 113,535.16 : x
  2. Step 2: Convert to fraction form
    209,030.48/288,462.54 = 113,535.16/x
  3. Step 3: Cross multiply
    209,030.48x = 288,462.54 × 113,535.16
  4. Step 4: Simplify right side
    209,030.48x = 32,750,640,632.91
  5. Step 5: Solve for x
    x = 32,750,640,632.91/209,030.48
  6. Step 6: Final answer
    x = 156,678.78

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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.