Home / 312,308.15-430,985.39-169,068.18

Finding the Fourth Proportional to 312,308.15, 430,985.39 and 169,068.18

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Solution

The fourth proportional to 312,308.15, 430,985.39 and 169,068.18 is: 233,314.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,308.15 : 430,985.39 = 169,068.18 : x
  2. Step 2: Convert to fraction form
    312,308.15/430,985.39 = 169,068.18/x
  3. Step 3: Cross multiply
    312,308.15x = 430,985.39 × 169,068.18
  4. Step 4: Simplify right side
    312,308.15x = 72,865,914,648.55
  5. Step 5: Solve for x
    x = 72,865,914,648.55/312,308.15
  6. Step 6: Final answer
    x = 233,314.17

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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.