Home / 210,017.60-315,028.80-52,246.40

Finding the Fourth Proportional to 210,017.60, 315,028.80 and 52,246.40

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Solution

The fourth proportional to 210,017.60, 315,028.80 and 52,246.40 is: 78,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,017.60 : 315,028.80 = 52,246.40 : x
  2. Step 2: Convert to fraction form
    210,017.60/315,028.80 = 52,246.40/x
  3. Step 3: Cross multiply
    210,017.60x = 315,028.80 × 52,246.40
  4. Step 4: Simplify right side
    210,017.60x = 16,459,120,696.32
  5. Step 5: Solve for x
    x = 16,459,120,696.32/210,017.60
  6. Step 6: Final answer
    x = 78,370.20

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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.