Home / 389,271.32-537,210.03-217,204.31

Finding the Fourth Proportional to 389,271.32, 537,210.03 and 217,204.31

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Solution

The fourth proportional to 389,271.32, 537,210.03 and 217,204.31 is: 299,750.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,271.32 : 537,210.03 = 217,204.31 : x
  2. Step 2: Convert to fraction form
    389,271.32/537,210.03 = 217,204.31/x
  3. Step 3: Cross multiply
    389,271.32x = 537,210.03 × 217,204.31
  4. Step 4: Simplify right side
    389,271.32x = 116,684,331,205.18
  5. Step 5: Solve for x
    x = 116,684,331,205.18/389,271.32
  6. Step 6: Final answer
    x = 299,750.65

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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.