Home / 209,319.47-288,943.03-148,384.16

Finding the Fourth Proportional to 209,319.47, 288,943.03 and 148,384.16

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Solution

The fourth proportional to 209,319.47, 288,943.03 and 148,384.16 is: 204,828.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,319.47 : 288,943.03 = 148,384.16 : x
  2. Step 2: Convert to fraction form
    209,319.47/288,943.03 = 148,384.16/x
  3. Step 3: Cross multiply
    209,319.47x = 288,943.03 × 148,384.16
  4. Step 4: Simplify right side
    209,319.47x = 42,874,566,978.73
  5. Step 5: Solve for x
    x = 42,874,566,978.73/209,319.47
  6. Step 6: Final answer
    x = 204,828.38

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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.