Home / 255,501.48-383,312.13-78,008.52

Finding the Fourth Proportional to 255,501.48, 383,312.13 and 78,008.52

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Solution

The fourth proportional to 255,501.48, 383,312.13 and 78,008.52 is: 117,031.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,501.48 : 383,312.13 = 78,008.52 : x
  2. Step 2: Convert to fraction form
    255,501.48/383,312.13 = 78,008.52/x
  3. Step 3: Cross multiply
    255,501.48x = 383,312.13 × 78,008.52
  4. Step 4: Simplify right side
    255,501.48x = 29,901,611,959.35
  5. Step 5: Solve for x
    x = 29,901,611,959.35/255,501.48
  6. Step 6: Final answer
    x = 117,031.07

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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.