Home / 285,095.09-393,428.94-157,777.67

Finding the Fourth Proportional to 285,095.09, 393,428.94 and 157,777.67

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Solution

The fourth proportional to 285,095.09, 393,428.94 and 157,777.67 is: 217,731.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,095.09 : 393,428.94 = 157,777.67 : x
  2. Step 2: Convert to fraction form
    285,095.09/393,428.94 = 157,777.67/x
  3. Step 3: Cross multiply
    285,095.09x = 393,428.94 × 157,777.67
  4. Step 4: Simplify right side
    285,095.09x = 62,074,301,463.77
  5. Step 5: Solve for x
    x = 62,074,301,463.77/285,095.09
  6. Step 6: Final answer
    x = 217,731.92

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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.