Home / 351,143.10-526,714.65-281,159.10

Finding the Fourth Proportional to 351,143.10, 526,714.65 and 281,159.10

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Solution

The fourth proportional to 351,143.10, 526,714.65 and 281,159.10 is: 421,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,143.10 : 526,714.65 = 281,159.10 : x
  2. Step 2: Convert to fraction form
    351,143.10/526,714.65 = 281,159.10/x
  3. Step 3: Cross multiply
    351,143.10x = 526,714.65 × 281,159.10
  4. Step 4: Simplify right side
    351,143.10x = 148,090,616,950.82
  5. Step 5: Solve for x
    x = 148,090,616,950.82/351,143.10
  6. Step 6: Final answer
    x = 421,738.65

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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.