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Finding the Fourth Proportional to 282,903.03, 390,410.94 and 162,054.88

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Solution

The fourth proportional to 282,903.03, 390,410.94 and 162,054.88 is: 223,638.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,903.03 : 390,410.94 = 162,054.88 : x
  2. Step 2: Convert to fraction form
    282,903.03/390,410.94 = 162,054.88/x
  3. Step 3: Cross multiply
    282,903.03x = 390,410.94 × 162,054.88
  4. Step 4: Simplify right side
    282,903.03x = 63,267,996,752.51
  5. Step 5: Solve for x
    x = 63,267,996,752.51/282,903.03
  6. Step 6: Final answer
    x = 223,638.46

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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.