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Finding the Fourth Proportional to 245,341.76, 368,012.50 and 76,875.32

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Solution

The fourth proportional to 245,341.76, 368,012.50 and 76,875.32 is: 115,312.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,341.76 : 368,012.50 = 76,875.32 : x
  2. Step 2: Convert to fraction form
    245,341.76/368,012.50 = 76,875.32/x
  3. Step 3: Cross multiply
    245,341.76x = 368,012.50 × 76,875.32
  4. Step 4: Simplify right side
    245,341.76x = 28,291,079,429.34
  5. Step 5: Solve for x
    x = 28,291,079,429.34/245,341.76
  6. Step 6: Final answer
    x = 115,312.94

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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.