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Finding the Fourth Proportional to 207,970.98, 286,999.95 and 112,477.68

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Solution

The fourth proportional to 207,970.98, 286,999.95 and 112,477.68 is: 155,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,970.98 : 286,999.95 = 112,477.68 : x
  2. Step 2: Convert to fraction form
    207,970.98/286,999.95 = 112,477.68/x
  3. Step 3: Cross multiply
    207,970.98x = 286,999.95 × 112,477.68
  4. Step 4: Simplify right side
    207,970.98x = 32,281,087,101.12
  5. Step 5: Solve for x
    x = 32,281,087,101.12/207,970.98
  6. Step 6: Final answer
    x = 155,219.19

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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.