Home / 210,330.60-315,495.90-163,091.40

Finding the Fourth Proportional to 210,330.60, 315,495.90 and 163,091.40

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Solution

The fourth proportional to 210,330.60, 315,495.90 and 163,091.40 is: 244,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,330.60 : 315,495.90 = 163,091.40 : x
  2. Step 2: Convert to fraction form
    210,330.60/315,495.90 = 163,091.40/x
  3. Step 3: Cross multiply
    210,330.60x = 315,495.90 × 163,091.40
  4. Step 4: Simplify right side
    210,330.60x = 51,454,668,025.26
  5. Step 5: Solve for x
    x = 51,454,668,025.26/210,330.60
  6. Step 6: Final answer
    x = 244,637.10

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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.