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Finding the Fourth Proportional to 218,897.64, 302,078.90 and 118,295.64

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Solution

The fourth proportional to 218,897.64, 302,078.90 and 118,295.64 is: 163,248.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,897.64 : 302,078.90 = 118,295.64 : x
  2. Step 2: Convert to fraction form
    218,897.64/302,078.90 = 118,295.64/x
  3. Step 3: Cross multiply
    218,897.64x = 302,078.90 × 118,295.64
  4. Step 4: Simplify right side
    218,897.64x = 35,734,616,806.00
  5. Step 5: Solve for x
    x = 35,734,616,806.00/218,897.64
  6. Step 6: Final answer
    x = 163,248.07

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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.