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Finding the Fourth Proportional to 268,068.30, 370,017.30 and 172,575

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Solution

The fourth proportional to 268,068.30, 370,017.30 and 172,575 is: 238,206.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,068.30 : 370,017.30 = 172,575 : x
  2. Step 2: Convert to fraction form
    268,068.30/370,017.30 = 172,575/x
  3. Step 3: Cross multiply
    268,068.30x = 370,017.30 × 172,575
  4. Step 4: Simplify right side
    268,068.30x = 63,855,735,547.50
  5. Step 5: Solve for x
    x = 63,855,735,547.50/268,068.30
  6. Step 6: Final answer
    x = 238,206.96

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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.