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Finding the Fourth Proportional to 315,038.08, 434,825.52 and 207,627.20

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Solution

The fourth proportional to 315,038.08, 434,825.52 and 207,627.20 is: 286,573.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,038.08 : 434,825.52 = 207,627.20 : x
  2. Step 2: Convert to fraction form
    315,038.08/434,825.52 = 207,627.20/x
  3. Step 3: Cross multiply
    315,038.08x = 434,825.52 × 207,627.20
  4. Step 4: Simplify right side
    315,038.08x = 90,281,605,206.14
  5. Step 5: Solve for x
    x = 90,281,605,206.14/315,038.08
  6. Step 6: Final answer
    x = 286,573.63

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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.