Home / 255,389.63-352,440.14-140,670.86

Finding the Fourth Proportional to 255,389.63, 352,440.14 and 140,670.86

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Solution

The fourth proportional to 255,389.63, 352,440.14 and 140,670.86 is: 194,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,389.63 : 352,440.14 = 140,670.86 : x
  2. Step 2: Convert to fraction form
    255,389.63/352,440.14 = 140,670.86/x
  3. Step 3: Cross multiply
    255,389.63x = 352,440.14 × 140,670.86
  4. Step 4: Simplify right side
    255,389.63x = 49,578,055,126.77
  5. Step 5: Solve for x
    x = 49,578,055,126.77/255,389.63
  6. Step 6: Final answer
    x = 194,127.13

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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.