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Finding the Fourth Proportional to 383,330.95, 528,637.91 and 302,950.50

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Solution

The fourth proportional to 383,330.95, 528,637.91 and 302,950.50 is: 417,788.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,330.95 : 528,637.91 = 302,950.50 : x
  2. Step 2: Convert to fraction form
    383,330.95/528,637.91 = 302,950.50/x
  3. Step 3: Cross multiply
    383,330.95x = 528,637.91 × 302,950.50
  4. Step 4: Simplify right side
    383,330.95x = 160,151,119,153.46
  5. Step 5: Solve for x
    x = 160,151,119,153.46/383,330.95
  6. Step 6: Final answer
    x = 417,788.13

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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.