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Finding the Fourth Proportional to 254,357.29, 351,017.45 and 139,646.58

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Solution

The fourth proportional to 254,357.29, 351,017.45 and 139,646.58 is: 192,714.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,357.29 : 351,017.45 = 139,646.58 : x
  2. Step 2: Convert to fraction form
    254,357.29/351,017.45 = 139,646.58/x
  3. Step 3: Cross multiply
    254,357.29x = 351,017.45 × 139,646.58
  4. Step 4: Simplify right side
    254,357.29x = 49,018,386,412.82
  5. Step 5: Solve for x
    x = 49,018,386,412.82/254,357.29
  6. Step 6: Final answer
    x = 192,714.69

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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.