Home / 210,510.20-290,503.58-115,017.62

Finding the Fourth Proportional to 210,510.20, 290,503.58 and 115,017.62

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Solution

The fourth proportional to 210,510.20, 290,503.58 and 115,017.62 is: 158,724.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,510.20 : 290,503.58 = 115,017.62 : x
  2. Step 2: Convert to fraction form
    210,510.20/290,503.58 = 115,017.62/x
  3. Step 3: Cross multiply
    210,510.20x = 290,503.58 × 115,017.62
  4. Step 4: Simplify right side
    210,510.20x = 33,413,028,345.47
  5. Step 5: Solve for x
    x = 33,413,028,345.47/210,510.20
  6. Step 6: Final answer
    x = 158,724.04

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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.