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Finding the Fourth Proportional to 470,978.18, 706,368.38 and 155,361.14

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Solution

The fourth proportional to 470,978.18, 706,368.38 and 155,361.14 is: 233,009.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,978.18 : 706,368.38 = 155,361.14 : x
  2. Step 2: Convert to fraction form
    470,978.18/706,368.38 = 155,361.14/x
  3. Step 3: Cross multiply
    470,978.18x = 706,368.38 × 155,361.14
  4. Step 4: Simplify right side
    470,978.18x = 109,742,192,468.11
  5. Step 5: Solve for x
    x = 109,742,192,468.11/470,978.18
  6. Step 6: Final answer
    x = 233,009.08

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.