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Finding the Fourth Proportional to 286,403.01, 395,225.10 and 159,086.67

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Solution

The fourth proportional to 286,403.01, 395,225.10 and 159,086.67 is: 219,533.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,403.01 : 395,225.10 = 159,086.67 : x
  2. Step 2: Convert to fraction form
    286,403.01/395,225.10 = 159,086.67/x
  3. Step 3: Cross multiply
    286,403.01x = 395,225.10 × 159,086.67
  4. Step 4: Simplify right side
    286,403.01x = 62,875,045,059.42
  5. Step 5: Solve for x
    x = 62,875,045,059.42/286,403.01
  6. Step 6: Final answer
    x = 219,533.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.