Home / 290,134.74-434,888.22-121,746.54

Finding the Fourth Proportional to 290,134.74, 434,888.22 and 121,746.54

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Solution

The fourth proportional to 290,134.74, 434,888.22 and 121,746.54 is: 182,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,134.74 : 434,888.22 = 121,746.54 : x
  2. Step 2: Convert to fraction form
    290,134.74/434,888.22 = 121,746.54/x
  3. Step 3: Cross multiply
    290,134.74x = 434,888.22 × 121,746.54
  4. Step 4: Simplify right side
    290,134.74x = 52,946,136,071.76
  5. Step 5: Solve for x
    x = 52,946,136,071.76/290,134.74
  6. Step 6: Final answer
    x = 182,488.10

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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.