Home / 308,964.69-463,521.02-128,950.02

Finding the Fourth Proportional to 308,964.69, 463,521.02 and 128,950.02

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Solution

The fourth proportional to 308,964.69, 463,521.02 and 128,950.02 is: 193,455.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,964.69 : 463,521.02 = 128,950.02 : x
  2. Step 2: Convert to fraction form
    308,964.69/463,521.02 = 128,950.02/x
  3. Step 3: Cross multiply
    308,964.69x = 463,521.02 × 128,950.02
  4. Step 4: Simplify right side
    308,964.69x = 59,771,044,154.67
  5. Step 5: Solve for x
    x = 59,771,044,154.67/308,964.69
  6. Step 6: Final answer
    x = 193,455.91

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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.