Home / 345,461.15-518,210.29-108,822.35

Finding the Fourth Proportional to 345,461.15, 518,210.29 and 108,822.35

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Solution

The fourth proportional to 345,461.15, 518,210.29 and 108,822.35 is: 163,239.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,461.15 : 518,210.29 = 108,822.35 : x
  2. Step 2: Convert to fraction form
    345,461.15/518,210.29 = 108,822.35/x
  3. Step 3: Cross multiply
    345,461.15x = 518,210.29 × 108,822.35
  4. Step 4: Simplify right side
    345,461.15x = 56,392,862,983.54
  5. Step 5: Solve for x
    x = 56,392,862,983.54/345,461.15
  6. Step 6: Final answer
    x = 163,239.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.