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Finding the Fourth Proportional to 201,802.30, 302,703.45 and 127,152.70

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Solution

The fourth proportional to 201,802.30, 302,703.45 and 127,152.70 is: 190,729.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,802.30 : 302,703.45 = 127,152.70 : x
  2. Step 2: Convert to fraction form
    201,802.30/302,703.45 = 127,152.70/x
  3. Step 3: Cross multiply
    201,802.30x = 302,703.45 × 127,152.70
  4. Step 4: Simplify right side
    201,802.30x = 38,489,560,966.82
  5. Step 5: Solve for x
    x = 38,489,560,966.82/201,802.30
  6. Step 6: Final answer
    x = 190,729.05

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1.5x scale

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.