Home / 389,637.34-537,697.24-217,545.35

Finding the Fourth Proportional to 389,637.34, 537,697.24 and 217,545.35

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Solution

The fourth proportional to 389,637.34, 537,697.24 and 217,545.35 is: 300,211.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,637.34 : 537,697.24 = 217,545.35 : x
  2. Step 2: Convert to fraction form
    389,637.34/537,697.24 = 217,545.35/x
  3. Step 3: Cross multiply
    389,637.34x = 537,697.24 × 217,545.35
  4. Step 4: Simplify right side
    389,637.34x = 116,973,531,037.48
  5. Step 5: Solve for x
    x = 116,973,531,037.48/389,637.34
  6. Step 6: Final answer
    x = 300,211.30

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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.