Home / 389,214.16-537,115.40-210,366.16

Finding the Fourth Proportional to 389,214.16, 537,115.40 and 210,366.16

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Solution

The fourth proportional to 389,214.16, 537,115.40 and 210,366.16 is: 290,305.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,214.16 : 537,115.40 = 210,366.16 : x
  2. Step 2: Convert to fraction form
    389,214.16/537,115.40 = 210,366.16/x
  3. Step 3: Cross multiply
    389,214.16x = 537,115.40 × 210,366.16
  4. Step 4: Simplify right side
    389,214.16x = 112,990,904,174.86
  5. Step 5: Solve for x
    x = 112,990,904,174.86/389,214.16
  6. Step 6: Final answer
    x = 290,305.22

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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.