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Finding the Fourth Proportional to 315,492.76, 435,389.58 and 179,546.24

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Solution

The fourth proportional to 315,492.76, 435,389.58 and 179,546.24 is: 247,779.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,492.76 : 435,389.58 = 179,546.24 : x
  2. Step 2: Convert to fraction form
    315,492.76/435,389.58 = 179,546.24/x
  3. Step 3: Cross multiply
    315,492.76x = 435,389.58 × 179,546.24
  4. Step 4: Simplify right side
    315,492.76x = 78,172,562,024.18
  5. Step 5: Solve for x
    x = 78,172,562,024.18/315,492.76
  6. Step 6: Final answer
    x = 247,779.26

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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.