Home / 315,215.60-472,823.40-306,467.60

Finding the Fourth Proportional to 315,215.60, 472,823.40 and 306,467.60

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Solution

The fourth proportional to 315,215.60, 472,823.40 and 306,467.60 is: 459,701.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,215.60 : 472,823.40 = 306,467.60 : x
  2. Step 2: Convert to fraction form
    315,215.60/472,823.40 = 306,467.60/x
  3. Step 3: Cross multiply
    315,215.60x = 472,823.40 × 306,467.60
  4. Step 4: Simplify right side
    315,215.60x = 144,905,052,621.84
  5. Step 5: Solve for x
    x = 144,905,052,621.84/315,215.60
  6. Step 6: Final answer
    x = 459,701.40

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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.