Home / 210,397.80-290,345.05-118,517.38

Finding the Fourth Proportional to 210,397.80, 290,345.05 and 118,517.38

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Solution

The fourth proportional to 210,397.80, 290,345.05 and 118,517.38 is: 163,551.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,397.80 : 290,345.05 = 118,517.38 : x
  2. Step 2: Convert to fraction form
    210,397.80/290,345.05 = 118,517.38/x
  3. Step 3: Cross multiply
    210,397.80x = 290,345.05 × 118,517.38
  4. Step 4: Simplify right side
    210,397.80x = 34,410,933,599.81
  5. Step 5: Solve for x
    x = 34,410,933,599.81/210,397.80
  6. Step 6: Final answer
    x = 163,551.77

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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.