Home / 290,130.12-435,319.02-163,865.16

Finding the Fourth Proportional to 290,130.12, 435,319.02 and 163,865.16

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Solution

The fourth proportional to 290,130.12, 435,319.02 and 163,865.16 is: 245,867.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,130.12 : 435,319.02 = 163,865.16 : x
  2. Step 2: Convert to fraction form
    290,130.12/435,319.02 = 163,865.16/x
  3. Step 3: Cross multiply
    290,130.12x = 435,319.02 × 163,865.16
  4. Step 4: Simplify right side
    290,130.12x = 71,333,620,863.34
  5. Step 5: Solve for x
    x = 71,333,620,863.34/290,130.12
  6. Step 6: Final answer
    x = 245,867.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.