Home / 312,225.25-430,870.82-168,985.29

Finding the Fourth Proportional to 312,225.25, 430,870.82 and 168,985.29

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Solution

The fourth proportional to 312,225.25, 430,870.82 and 168,985.29 is: 233,199.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,225.25 : 430,870.82 = 168,985.29 : x
  2. Step 2: Convert to fraction form
    312,225.25/430,870.82 = 168,985.29/x
  3. Step 3: Cross multiply
    312,225.25x = 430,870.82 × 168,985.29
  4. Step 4: Simplify right side
    312,225.25x = 72,810,830,470.24
  5. Step 5: Solve for x
    x = 72,810,830,470.24/312,225.25
  6. Step 6: Final answer
    x = 233,199.69

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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.