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Finding the Fourth Proportional to 144,779.19, 216,928.59 and 102,449.40

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Solution

The fourth proportional to 144,779.19, 216,928.59 and 102,449.40 is: 153,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,779.19 : 216,928.59 = 102,449.40 : x
  2. Step 2: Convert to fraction form
    144,779.19/216,928.59 = 102,449.40/x
  3. Step 3: Cross multiply
    144,779.19x = 216,928.59 × 102,449.40
  4. Step 4: Simplify right side
    144,779.19x = 22,224,203,888.35
  5. Step 5: Solve for x
    x = 22,224,203,888.35/144,779.19
  6. Step 6: Final answer
    x = 153,504.13

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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.