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Finding the Fourth Proportional to 219,106.76, 328,775.86 and 155,476.07

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Solution

The fourth proportional to 219,106.76, 328,775.86 and 155,476.07 is: 233,296.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,106.76 : 328,775.86 = 155,476.07 : x
  2. Step 2: Convert to fraction form
    219,106.76/328,775.86 = 155,476.07/x
  3. Step 3: Cross multiply
    219,106.76x = 328,775.86 × 155,476.07
  4. Step 4: Simplify right side
    219,106.76x = 51,116,778,623.67
  5. Step 5: Solve for x
    x = 51,116,778,623.67/219,106.76
  6. Step 6: Final answer
    x = 233,296.22

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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.