Home / 389,444.14-537,449.25-219,678.22

Finding the Fourth Proportional to 389,444.14, 537,449.25 and 219,678.22

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Solution

The fourth proportional to 389,444.14, 537,449.25 and 219,678.22 is: 303,165.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,444.14 : 537,449.25 = 219,678.22 : x
  2. Step 2: Convert to fraction form
    389,444.14/537,449.25 = 219,678.22/x
  3. Step 3: Cross multiply
    389,444.14x = 537,449.25 × 219,678.22
  4. Step 4: Simplify right side
    389,444.14x = 118,065,894,580.34
  5. Step 5: Solve for x
    x = 118,065,894,580.34/389,444.14
  6. Step 6: Final answer
    x = 303,165.16

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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.