Home / 219,031.40-302,266.18-127,172.22

Finding the Fourth Proportional to 219,031.40, 302,266.18 and 127,172.22

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Solution

The fourth proportional to 219,031.40, 302,266.18 and 127,172.22 is: 175,499.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,031.40 : 302,266.18 = 127,172.22 : x
  2. Step 2: Convert to fraction form
    219,031.40/302,266.18 = 127,172.22/x
  3. Step 3: Cross multiply
    219,031.40x = 302,266.18 × 127,172.22
  4. Step 4: Simplify right side
    219,031.40x = 38,439,861,141.52
  5. Step 5: Solve for x
    x = 38,439,861,141.52/219,031.40
  6. Step 6: Final answer
    x = 175,499.32

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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.