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Finding the Fourth Proportional to 630,021.84, 945,030.93 and 156,707.22

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Solution

The fourth proportional to 630,021.84, 945,030.93 and 156,707.22 is: 235,060.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,021.84 : 945,030.93 = 156,707.22 : x
  2. Step 2: Convert to fraction form
    630,021.84/945,030.93 = 156,707.22/x
  3. Step 3: Cross multiply
    630,021.84x = 945,030.93 × 156,707.22
  4. Step 4: Simplify right side
    630,021.84x = 148,093,169,854.32
  5. Step 5: Solve for x
    x = 148,093,169,854.32/630,021.84
  6. Step 6: Final answer
    x = 235,060.37

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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.