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Finding the Fourth Proportional to 271,585.80, 407,378.34 and 153,203.40

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Solution

The fourth proportional to 271,585.80, 407,378.34 and 153,203.40 is: 229,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,585.80 : 407,378.34 = 153,203.40 : x
  2. Step 2: Convert to fraction form
    271,585.80/407,378.34 = 153,203.40/x
  3. Step 3: Cross multiply
    271,585.80x = 407,378.34 × 153,203.40
  4. Step 4: Simplify right side
    271,585.80x = 62,411,746,774.36
  5. Step 5: Solve for x
    x = 62,411,746,774.36/271,585.80
  6. Step 6: Final answer
    x = 229,804.90

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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.