Home / 402,031.09-554,799.04-220,741.45

Finding the Fourth Proportional to 402,031.09, 554,799.04 and 220,741.45

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Solution

The fourth proportional to 402,031.09, 554,799.04 and 220,741.45 is: 304,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,031.09 : 554,799.04 = 220,741.45 : x
  2. Step 2: Convert to fraction form
    402,031.09/554,799.04 = 220,741.45/x
  3. Step 3: Cross multiply
    402,031.09x = 554,799.04 × 220,741.45
  4. Step 4: Simplify right side
    402,031.09x = 122,467,142,609.36
  5. Step 5: Solve for x
    x = 122,467,142,609.36/402,031.09
  6. Step 6: Final answer
    x = 304,621.07

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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.