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Finding the Fourth Proportional to 289,962.94, 435,073.58 and 112,483.79

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Solution

The fourth proportional to 289,962.94, 435,073.58 and 112,483.79 is: 168,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,962.94 : 435,073.58 = 112,483.79 : x
  2. Step 2: Convert to fraction form
    289,962.94/435,073.58 = 112,483.79/x
  3. Step 3: Cross multiply
    289,962.94x = 435,073.58 × 112,483.79
  4. Step 4: Simplify right side
    289,962.94x = 48,938,724,522.82
  5. Step 5: Solve for x
    x = 48,938,724,522.82/289,962.94
  6. Step 6: Final answer
    x = 168,775.79

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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.