Home / 255,505.04-383,303.76-105,663.98

Finding the Fourth Proportional to 255,505.04, 383,303.76 and 105,663.98

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Solution

The fourth proportional to 255,505.04, 383,303.76 and 105,663.98 is: 158,515.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,505.04 : 383,303.76 = 105,663.98 : x
  2. Step 2: Convert to fraction form
    255,505.04/383,303.76 = 105,663.98/x
  3. Step 3: Cross multiply
    255,505.04x = 383,303.76 × 105,663.98
  4. Step 4: Simplify right side
    255,505.04x = 40,501,400,830.56
  5. Step 5: Solve for x
    x = 40,501,400,830.56/255,505.04
  6. Step 6: Final answer
    x = 158,515.08

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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.