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Finding the Fourth Proportional to 666,307.99, 999,238.32 and 216,923.23

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Solution

The fourth proportional to 666,307.99, 999,238.32 and 216,923.23 is: 325,312.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,307.99 : 999,238.32 = 216,923.23 : x
  2. Step 2: Convert to fraction form
    666,307.99/999,238.32 = 216,923.23/x
  3. Step 3: Cross multiply
    666,307.99x = 999,238.32 × 216,923.23
  4. Step 4: Simplify right side
    666,307.99x = 216,758,001,416.08
  5. Step 5: Solve for x
    x = 216,758,001,416.08/666,307.99
  6. Step 6: Final answer
    x = 325,312.03

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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.